title: The histopathology of early synovitis.
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000473:pathology* / Q000503:physiopathology; D001182:Arthroscopy / Q000379:methods; D001707:Biopsy, Needle; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D018570:Risk Assessment; D012720:Severity of Illness Index; D013582:Synovial Fluid / Q000737:chemistry / Q000166:cytology; D013583:Synovial Membrane / Q000473:pathology*; D013585:Synovitis / Q000473:pathology* / Q000503:physiopathology; D013997:Time Factors